def test_find_cycle_len_4 (self) :
     m = find_cycle_len(1)
     self.assertEqual(m, 1)
 def test_find_cycle_len_2 (self) :
     m = find_cycle_len(343)
     self.assertEqual(m, 126)
 def test_find_cycle_len_3 (self) :
     m = find_cycle_len(104)
     self.assertEqual(m, 13)
 def test_find_cycle_len_1 (self) :
     m = find_cycle_len(117)
     self.assertEqual(m, 21)